ClassID:

129157

E03B3/15 - CPC Classification

Classification description:

Methods or installations for obtaining or collecting drinking water or tap water from underground; Obtaining and confining water by means of wells Keeping wells in good condition, e.g. by cleaning, repairing, regenerating; Maintaining or enlarging the capacity of wells or water-bearing layers

Recent Application in this class:
#1
20250101809
2025-03-27

ACCESSING WELLS BELOW AN OBSTRUCTION OR DISCONTINUITY

#2
20250101720
2025-03-27

INCREASING PRODUCTION FROM WATER WELLS

#3
20210214924
2021-07-15

Large diameter water well control

#4
20210002873
2021-01-07

Non-powered seawater pumping system for reducing seawater intrusion, and apparatus and method for optimal design of well in the same system

#5
20210002872
2021-01-07

Non-powered seawater pumping system for reducing seawater intrusion, and apparatus and method for optimal design of well in the same system

#6
20200165793
2020-05-28

Shielding apparatus for high-depth groundwater well pollution prevention grouting

#7
20200024834
2020-01-23

Non-powered seawater pumping system for reducing seawater intrusion, and apparatus and method for optimal design of well in the same system

#8
20170241263
2017-08-24

Water sampling assembly and method for groundwater production wells and boreholes

#9
20170226719
2017-08-10

System and method for effective use of a low-yield well

#10
20160076340
2016-03-17

Device for cleaning water wells

#11
20160069144
2016-03-10

TUBING-PULLING SYSTEMS

#12
20160033462
2016-02-04

Wellhead water quality detector

#13
20120312539
2012-12-13

Apparatus and method for water well cleaning

#14
20120097387
2012-04-26

Apparatus for activating or cleaning filter tube wells

#15
20110132599
2011-06-09

Apparatus for isolating and completing multi-zone frac packs

#16
20100282656
2010-11-11

OSMOTIC BARRIER SYSTEM AND METHOD

#17
20100270024
2010-10-28

Method and apparatus for the continuous treatment of a water well

#18
20090308595
2009-12-17

Well cleaning apparatus

#19
20090044936
2009-02-19

Horizontal Filter Well System And Method Of Operating Same

#20
20080073087
2008-03-27

VENTILATION OF UNDERGROUND POROSITY STORAGE RESERVOIRS

#21
20070118980
2007-05-31

Pole plunger

#22
20060225883
2006-10-12

Self-leaving in-situ device and method for passively removing oil from water wells

#23
20060157237
2006-07-20

Well and method for regenerating a well

#24
20050150652
2005-07-14

Method for improving well quality

#25
20050039907
2005-02-24

Aquifer recharge valve and method

#26
20050006104
2005-01-13

Potable well conversion device

#27
18616798
2025-09-23

Systems, apparatuses, and methods for changing a primary extraction location from an aquifer utilizing a custom extended pump sleeve (CEPS)

#28
18611712
2025-04-29

Assessing and remediating well clogging from mobile particles, systems, apparatuses, and methods

#29
18611704
2024-10-01

Assessing and remediating well clogging from bacteria, systems, apparatuses, and methods

#30
17399916
2023-08-29

Water well rehabilitation system

#31
16229553
2024-08-20

Non-invasive well level monitoring and maintenance